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Finding the Fourth Proportional to 1,752.55, 2,626.96 and 929.98

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Solution

The fourth proportional to 1,752.55, 2,626.96 and 929.98 is: 1,393.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.55 : 2,626.96 = 929.98 : x
  2. Step 2: Convert to fraction form
    1,752.55/2,626.96 = 929.98/x
  3. Step 3: Cross multiply
    1,752.55x = 2,626.96 × 929.98
  4. Step 4: Simplify right side
    1,752.55x = 2,443,020.26
  5. Step 5: Solve for x
    x = 2,443,020.26/1,752.55
  6. Step 6: Final answer
    x = 1,393.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.